tert-Butyl2-phenyl-4-(tosyloxy)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate CAS 1033194-61-4
| CAS No. | 1033194-61-4 |
| Molecular Formula | C25H27N3O5S |
| Molecular Weight | 481.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, tert-Butyl2-phenyl-4-(tosyloxy)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate (C25H27N3O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 481.56 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
tert-Butyl2-phenyl-4-(tosyloxy)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate (CAS 1033194-61-4), molecular formula C25H27N3O5S and molecular weight 481.56 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), tert-Butyl2-phenyl-4-(tosyloxy)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C25H27N3O5S |
| Molecular Weight | 481.56 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
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